From The Art and Popular Culture Encyclopedia

John Curtis Holmes (August 8, 1944 – March 13, 1988) better known as John C. Holmes or Johnny Wadd (after the lead character in a series of related films), was one of the most famous male adult film stars of all time, appearing in about 2,500 adult loops, stag films, and porno feature movies in the 1970s and 1980s, including at least one gay feature film and a handful of gay loops. He was best known for his exceptionally large penis, which was heavily promoted as being the longest in the porn industry; however, its exact dimensions are unknown. Holmes also attracted notoriety for his involvement in the brutal Wonderland Murders in 1981, and for his death from AIDS.